<template>
  <div>
    <h1>我是一级页面</h1>
    <span>
      <router-link to="/about">关于</router-link>
    </span>
    <span>
      <router-link to="/content">内容</router-link>
    </span>
    <span>
      <router-link to="/UI">UI</router-link>
    </span>
    <router-view></router-view>
  </div>
</template>

<script>
export default {};
</script>

<style>
span {
  margin-left: 20px;
}
</style>